My iphone 11 is on but the screen is black

- My iphone 11 pro max is on but the screen is black
- My iphone 11 is ringing but the screen is black
- My phone is on but the screen is black iphone 11
- My iphone 11 screen is black but it still works
- My iphone 11 screen is black
- My iphone 11 screen is black with loading circle
- Iphone black screen but still on